AMD K8/fam10: Fix CBMEM on S3 resume

Change to use cbmem_recovery() to wipe CBMEM region and reset
ACPI wakeup if CBMEM TOC was not found.

Change-Id: Ic362253eaa00bd442d4cc0514632f9096e20bfa6
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: http://review.coreboot.org/4673
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@google.com>

src/cpu/amd/car/post_cache_as_ram.c

@@ -38,7 +38,7 @@ static inline void *backup_resume(void) {
 	if (!suspend)
 		return NULL;
 
-	if (!cbmem_reinit())
+	if (cbmem_recovery(1))
 		return NULL;
 
 	resume_backup_memory = cbmem_find(CBMEM_ID_RESUME);